Searchers

Permissionless access to Solana orderflow: standardized streams, open auctions, atomic bundles.

Flowra gives searchers what Solana has never had: permissionless, standardized access to orderflow. No privileged relationships, no private deals. Subscribe to the stream, find your edge, and win by bidding.

What you get

An open, standardized stream

Pending transactions from all participating validators, deduplicated and delivered over a single gRPC interface. One integration covers the whole Flowra validator set. See Orderflow Stream.

Auctions every 50 ms

Mini-auctions close every 50 ms, up to eight rounds per Solana slot. Within a window, the highest tip wins among non-conflicting bundles; you are racing bids, not nanoseconds. Mechanics: Auction Mechanics.

Atomic, all-or-nothing bundles

Bundles execute in order and in full, or not at all. Failed bundles never land, so multi-leg strategies carry no partial-execution risk and no wasted fees on reverts. See Bundles.

Strategy confidentiality

The orderflow is open; your bundles are not. Submissions go point-to-point to the Block Engine and are never exposed to other searchers or a public mempool.

Simple economics

The protocol fee is 5% of tips. No subscriptions, no per-seat access fees, no paid data tiers.

How it fits together

The searcher loop: subscribe, bid, win or re-bid
The searcher loop: subscribe, bid, win or re-bid

Requirements

Requirement Detail
Keypair An Ed25519 keypair identifying your searcher (used in authentication)
Connectivity gRPC/TLS to your nearest Flowra region (endpoints)
Tips SOL for auction tips, paid as lamport transfers to tip accounts (GetTipAccounts)
Bundle size Up to 5 transactions per bundle

Guides

Getting started & authentication
getting-started/
Subscribing to the orderflow stream
orderflow-stream/
Building and submitting bundles
bundles/
API reference
api-reference/